Hoist



UNITED STATES JOSEPH J. GREEN,

4PATENT OEEICE.l

OF CANTON, OHIO.

Horst SPECIFICATION lforming part of Letters Patent No. 406,579, datedJuly 9, 1889. Application tiled August 31, ISSS. Serial No. 284,260. (Nomodel.)

T0 @ZZ whom it may concern.-

Be it known that I, JOSEPH J. GREEN, a citizen of the United States,residing at Canton, in the county of Stark and State of Ohio, haveinvented certain new and useful Improvements in I-Ioists; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon, in which- Figure l is a side elevation ot thesheaves, showing the different parts properly attached.l Fig. 2 is aside elevation of the top or upper sheave, showing the opposite sidefrom that shown in Fig. l. Fig. 3 is aperspective view of the top orupper sheave. Figs. 4. are detached views of the locking-segment. Fig. 5is a view of a portion of the top or upper sheave, showing the lockingdevices in dotted lines in position for releasing.

The present invention has relation to hoists and its nature consists inthe different parts and combination of parts hereinafter described, andparticularly pointed out in the claims.

Similar letters of reference indicate corresponding parts in all thefigures of the drawings.

In the accompanying drawings, A represents the top or uppersheave-block, which is substantially of the form shown, and is providedwith the hook a, which may be attached in the ordinary manner. Vithinthe sheaveblocl; A are located the grooved pulleys a and d2, saidpulleys rotating on the bolt b. The sheave-bloek- B is substantially ofthe forni shown, and is provided with two pulleys. The rope C isattached to the eye b by means of the hook c, or its equivalent, andextends down under one of the pulleys in the sheave-block B, thence overone of the pulleys in the sheave-block A, thence under the second pulleyin the sheave-block B, and inally over the second pulley in thesheaveblock A, said rope being arranged substantially as illustrated inthe drawings.

The lever D is pivotally attached to the sheave-block A, and issubstantiallyof the 5o form shown. This lever D is provided with thepind, which is for the purpose hereinafter described.

The segment E is pivotally attached to the sheave-block A by means ofthe bolt e', con- 55 necting it with the projection e2 on vsaidsheave-block, and is provided with the extension or arm F, saidextension or arm being provided' with the elongated slot d, which is forthe purpose of receiving the pin d, located 6o on the outer end of thelever D,as illustrated in the drawings. p

For the purpose of operating the segment E, the pendent arm G isprovided, running from and formed integral with the lower part of thelever D. The bottom or lower end of said arm is provided with the eyeII, which is for the purpose of receiving the rope C. The segment E isprovided with the groove e, said groove being' provided with the teethf, 7o which are for the' purpose of locking the rope C at any desiredpoint. It will be seen that as the free end of the rope C is carried ordrawn outward the pendent arm G will be moved outward, thereby releasingthe segment E from the rope C by means of the pin d and the elongatedslot d', when the rope C is free to be moved in either direction. lVhenit is desired to lock the rope C, the free end is drawn or permitted t0-go inward, when 8o the segment E engages the rope C and securely locksthe same, thereby holding the weight at any desired point.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination, with a sheave-bloek and its rope, of a lever and asegment pivoted at different points to the sheave-bloek, said leverhaving a pin engaging with a slot in 9o the segment, whereby themovement of the lever controls the movements of the segment to hold orrelease the rope, substantially as described.

2. The combination of the sheave-blocks A and B, the rope C, the leverD,provided with the pin d, the pendent arm G, provided with the eye I-I,and the segment E, provided with the extension 0r arm F, having theelongated In testimony that I claim the above have slot CF,suhstzultally :1s and for the purpose I hereunto subscribed my nmneinthe presence ro described. of two witnesses.

3. The Combination of thesheave-bloeksA D Y Y T and B, the rope C, thelever D. provided with JObEl H J GREEN the pendent arm G and eye H, thesegment Vtnesses: E, the groove @,and the teethf, substantially as andfor the purpose described.

E. A. C. SMITH, F. W. BOND.

